Door check for automobiles



July 21, 1942. R. c. JACOBS DOOR CHECK FOR AUTOMOBILES Filed June 1, 1957 2 Sheets-Sheet l Znvcnfor fax C. cZcos,

July 21, 1942. R. c. JACOBS DOOR CHECK FOR AUTOMOBILES Filed June 1, 1937 2 Sheets-Sheet 2 ZSpventor 582x C. Jckco Patented July 21, 1942 UNITED STATES PATENT 3 OFFICE DOOR CHECK FOR AUTOMOBILES Rex 0. Jacobs, Detroit, Mich.

Application June 1, 1937, Serial No. 145,749

4 Claims.

This invention relates to door checks for automobile doors. It constitutes an improvement on the door checks shown in my prior Patents 2,- 039,960 and 2,039,961 of May 5, 1936; 2,034,905 of May 24., 1936, and my co-pending application Serial No. 133,606, filed March 29, 1937.

The primary object of the present invention is to provide a door check for limiting the swinging movement of an automobile door, the check being constructed to include means for cushioning the act of checking and to yieldably oppose closing movement of the door when it is in its full open position.

Another object of the invention is to provide a door check of the character referred to Which is noiseless in operation. Door checks of the present type usually require lubrication to prevent squeaks, and even in the presence of lubrication, cause vibratory noises due to metal to metal contact of the relatively movable parts. The object of the invention, stated in other words, is to eliminate the necessity of lubrication and also to eliminate vibratory noises.

With the above and other ends in view the invention is more fully disclosed with reference to the accompanying drawings, in which Figure 1 is a horizontal section;

Fig. 2 is a vertical section;

3 is a section taken on the line 33 of Fig. 2, and

Fig. 4 is a section similar to Fig. l and illustrating the door in its open position.

Like characters of reference are employed throughout to designate corresponding parts.

The numeral I designates a door pillar and 2 a door hingedly connected thereto. Mounted in the door pillar is a fixed bracket 3 to which a check, generally designated 4, is pivotally connected. The check 4 extends through an aperture 5 in the vertical edge of the door 2 and also through the opening 6 in a hollow bracket 1 which is attached to the inner face of the vertical edge of the door 2.

Mounted in the hollow bracket 1 are two parallel plates 8 and each plate has a pair of slots 9 therein. Round pins I!) have opposite ends received in respective slots 9 in respective plates 8 and are backed by rubber springs H. Wear plates l2 of metal are interposed between respective pins 10 and respective cushions II and the springs I I function to force the pins toward each other. The check 4 extends between the pins l0 and is engaged on opposite sides thereby and as the door is moved from the position shown in Fig. 1 to that shown in Fig. 4 the check moves relative to the pins [0. The check 4 is recessed on opposite sides, as

designated at l3, and with the door closed as shown in Fig. 1, the rollers I0 engage the low parts of respective recesses I3. The check 4 has a portion I4 of uniform thickness and which, as viewed in plan as shown in Figs. 1 and 4 is curved in the direction of opening movement of the door. Adjacent its outer end the check has opposed recesses I5 from which the outwardly diverging surfaces l6 extend to the head 11. The head I! has laterally extending shoulders 18 whose combined width is greater than the width of the bracket opening 6.

In operation, as the door 2 is swung from the position shown in Fig. 1 toward that shown in Fig. 4, the pins 10 engage opposite sides of the door check 4. As the pins engage the diverging surfaces [6 they are forced apart; and the springs II is resiliently opposing spreading of the pins l0, tend to cushion the checking of swinging movement of the door. If the momentum of the door is so great that the springs II and pins l 0 are not capable of checking its movement, the shoulders l8 contact the bracket 1 and positively check its movement.

After the door has been opened, the pins l0 engage in respective recesses l5 and yieldably oppose closing of the door.

Although a specific embodiment of the invention has been illustrated and described it will be understood that various changes may be made within the scope of the appended claims Without departing from the spirit of the invention and such changes are contemplated.

What I claim is:

1. Apparatus of the character described comprising a bracket having an opening, a check extending through said opening, parallel slotted plates in said bracket, rollers having their opposite ends received in respective slots of respective plates, resilient means urging said rollers into contact with opposite sides of said check, and diverging surfaces on said check adapted to be engaged by said rollers.

2. Apparatus of the character described comprising a bracket having an opening, a check extending through said opening, parallel slotted plates in said bracket, rollers having their opposite ends received in respective slots of respective plates, resilient means urging said rollers into contact with opposite sides of said check, diverging surfaces on said check adapted to be engaged by said rollers, and a head on the end prising a bracket having an opening, a check extending through said opening, parallel slotted plates in said bracket, rollers having their opposite ends received in respective slots of respective plates, resilient means urging said rollers into contact with opposite sides of said check, notches in said check adapted to be engaged by said rollers, diverging surfaces on said check adapted to be engaged by said rollers, and a head on the end of said check, said head being larger than the opening in said bracket.

REX C. JACOBS 

